Loading machine



Au 12 mm wM-AW L. THORTVEDT LOADING MACHINE Filed May 22 1922 3 Sheets-Sham i WITNESS:

LEMI WU Aug 12 W243,

, L. THC'RTVEDT I LOADING MACHINE Filed May 22, 1922 5 sheets shaat 6 0" @Vwm,

INVENTOR A'ITORNEY WUTNESS:

Aug. 12, 119% mmmw L. THORTVEDT LOADING MACHINE Filed May 22, 1922 3 Sheets-Shwt 5 INVENTOR Patented Aug. l2, i924.

LEVI THOR'IVEDT, OF GLYNDON, MINNESOTA.

LOADING MACHINE.

Application filed May 22, 1922. Serial No. 562,741.

To all whom it may concern:

Be it known that 1, Law THoRTvEnT, a citizen of the United States, residing at Udyndon, in the county of Clay and State of Minnesota, have invented new and use ful lmprovements in Loading Machines, of which the following is a specification.

This invention relates to loading apparatus and has for its object the provision of a novel device by means of which gravel, sand, earth, cement or in fact any material maybe loaded into a wagon, boat, or in fact anything, the device including a receiver onto which scoops or scrapers may be dragged for depositing the material thereinto prior to its loading into the vehicle or other device.

An important object is the provision of a device of this character which is provided with power driven means whereby the receiver may be elevated to cause the material therein to be discharged into the vehicle or the like, a friction brake being associated with the drive means for holding the re ceiver at any elevation in case such should be desired for any reason.

Another object is the provision of a device of this character in which the receiver is of peculiar formation whereby scoops on scrapers may be dragged thereover with, ease, the receiver having hingedly mounted sides which when in inactive position form inclined approaches to the main body of the receiver, the hinged sides being automatically moved to their operative positions when the drive mechanism is placed in oporation.

Yet another object is the provision of a device of this character in which thereceiver is provided with a gate or door which will also be automatically thrown to its open position when the receiver is elevated to dump the same.

An additional object is the provision of a device of this character which will be simple and inexpensive in manufacture, easy to control and operate, which will be a great time and labor saver and a general improvement in the art.

With the above and other objects and advantages in view, the invention consists in the details of construction to be hereinafter more fully described and claimed and illustrated in the acompanying drawings, in which:

Figure 1 is a side elevation of the device showing it in initial position,

Figure 2 is a plan view,

Figure 3 is a front elevation, I

Figure 4 is a longitudinal section showing the device in dumping position,

Figure 5 is a detail edge view of the brake mechanism and clutch device,

Figure 6 is an elevation at right angles to Figure 5,

Figure 7 is a longitudinal section through the receiver,

Figure 8 is a cross section therethrough showing the sides swung down.

Referring more particularly to the drawings I have shown my device as comprising a supporting structure which includes lon gitudinal sills 15 connected by cross member 16, these sills being designed to lie upon the ground. Rising from the sills at one end thereof are uprights 17 connected at their upper ends by a cross bar 18 and reinforced by diagonal braces 19 which are secured to the sills. The numeral 20 designates crossed brace rods which are secured to the uprights as shown.

Pivoted at 21 to the sills at the lower ends of the uprights are beams 22 which carry the receiver designated broadly by the numeral 23, these beams 22 being swingable between the braces 19. The beams 22 are of suchelength that they project considerably beyond the sills when the beams and receiver are lying flat upon the ground. The receiver proper consists of a rectangular frame 24 of somewhat box like formation and covered preferably with steel though it is of course conceivable that wood might be the material used. The bottom of this frame 2 1 is designated by the numeral 25 and has its outer end somewhat upturned as indicated at 26. Hinged upon the frame 2% are shields 27 which have their upper edges engaging the ground soas to constitute approach members when the receiver is lying upon the ground in position to have material scooped or scraped thereinto. The ends of these shields are upturned as indicated at 28 so as toprevent material from being spilled off while the receiver is being hoisted. The end of the bottom 25 nearest the upright frame is formed with a chute 29 which has its discharge end normally closed by a gate 30 which is of U-shape and which is pivoted at 31 upon the sides of the chute. Secured to this gate is an upstanding bracket 32 of T-shape as shown for a purpose to be described.

J ournaled transversely of the uprights 17 at the upper ends thereof is a shaft 33 which carries grooved pulleys 34 over which are trained cables 35 which have one end connected with the shields 27 by means of eye bolts 36 or the like and which have their other ends secured to and wrapped about drums 37 mounted upon a shaft 38 likewise journaled transversely of the uprights. Secured upon one end of the shaft 38 is a gear 39 which meshes with a pinion 40 secured upon a shaft 41 journaled transversely of the uprights.

Secured upon the other end of the shaft 41 is a brake drum 42 which is formed with a groove within which is engaged a steel brake band 43 which has one end secured upon the adjacent upright and which has its other end connected with a brake lever 44. By pulling upon the lever and gripping the band to the drum it is apparent that the ,opposite the inclined braces 19 is an inclined chute 48 designed to receive material from the receiver, when the latter is elevated as will beexplained, and to cause the material to pass into a wagon, boat or any vehicle being loaded. Secured upon the cross bar 18 is a peculiarly shaped bracket 49 located in the path of travel of the bracket 32 carried by the receiver gate so as to be engaged thereby.

The operation of the device is as follows:

Initially the beams 22 lie fiat upon the ground inwardly of the sills 15 with the bottom 25. of the receiver likewise lying upon the ground and. with the shields 27 arranged in inclined posit-ion as shown in certain figures of the drawings. At th1s time there is no tension what-ever upon the cables 35 and the gate 30 is in its normal position closing the discharge end of the chute 29. Gravel,

Y sand, earth or any other material to be loaded is then dragged onto the receiver by means'of scoops or scrapers, the shields operating as approach members for permitting th1s action. After the scrapers or scoops .pass over the receiver they are dumped in the ordinary manner. When the receiver "contains a proper quantity of material, the

operator shifts the lever 47 to throw in the clutch 46 whereupon power will be applied to the shaft 41. Owing to the engagement of the. pinion 40 with the gear 39 it is apparent that the shaft 38 will be rotated, carrying with it the drum 37 which will operate to wind up the cables 35. As this tension is applied to the cables the first effect will be to swing the shields 27 upwardly into the position so that they will form sides for the receiver and prevent the material therein from spilling out. As the tension or pull upon the cables is continued, the beams 22 carrying the receiver full of material will be swung upwardly upon their pivots 21. Near the end of this action the T-bracket 32 will engage the bracket 49 whereupon the gate 30 will be lifted out of engagement with the bottom of the chute 29 and consequently out of obstructing relation to the discharge end thereof. It is intended that when the receiver leaves this position that the clutch be thrown out and that the operator pull the brake lever 44 to hold the device in this position. hen the gate 30 is raised the material within the receiver will slide out through the chute 29 into and through the chute 48 to the wagon or other vehicle being loaded. After the device has been thus dumped relieving the pressure upon the brake lever 44 will permit the receiver to descend by gravity to its initial position ready for another load.

From the foregoing description and a study of the drawings it will be apparent that I have thus provided a simply constructed and consequently inexpensive device by means of which loading of various materials may be accomplished in a rapid manner and with the expenditure of very little labor as no shoveling whatever is necessary, the device having the material placed thereon by means of the ordinary horse drawn scoops, or scrapers. It is apparent that I have provided ample means for effecting the driving action and also means for holding the receiver at any desired position without permitting dumping thereof as for instance while waiting for an empty wagon to drive under the chute 48.

Vhile I have shown and described the preferred embodiment of the invention, it is of course to be understood that I reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of the invention or the scope-of the subjoined claims.

Having thus described my invention I claim:

1. A hoisting mechanism comprising a stationary frame including ground sills, uprights and braces secured thereto, a movable frame straddling said stationary frame and pivoted thereto at the lower end thereof, a receiver formed as an elongated bottom member mounted on the movable frame and having upturned ends, and further having hinged side plates adapted to lie on the ground to constitute approach members for the receiver, a mechanism mounted on said uprights, and flexible members forming part of the Winding mechanism trained over guide pulleys on the stationary frame and connected With said hinged side plates whereby initial lifting movement of the movable frame will swing said side plates into vertical position defining sides for said receiver, a chute pivoted on the end of said bottom member nearest the uprights, and a gate pivoted on said chute.

2. A hoisting mechanism comprising a stationary frame including ground sills, uprights and braces secured thereto, a movable frame straddling said stationary frame and pivoted thereto at the loWer end thereof, a receiver formed as an elongated bottom member mounted on the movable frame and having upturned ends, and further having hinged side plates adapted to lie on the ground to constitute approach members for the receiver, a mechanism mounted on said uprights, and flexible members forming part of the Winding mechanism trained over guide pulleys on the stationary frame and connected With said hinged side plates whereby initial lifting movement of the movable frame Will swing said side plates into vertical position defining sides for said receiver, a chute pivoted on the end of said bottom member nearest the uprights, a gate pivoted on said chute, a bracket on said gate and a stop carried by the stationary frame engageable by said bracket to effect lifting of the gate to permit discharge of the load in the receiver.

In testimony whereof I afiix my signature.

LEVI THORTVEDT. 

